Adding-machine



(No Model.) 4 Sheets-Sheet I. S E AUSTIN ADDING MACHINE.

No. 403,900. Patented May 28 1889.

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4 Sheets-Sheet 2.

(No Model.)

S. E. AUSTIN. ADDING MACHINE. No. 403,900. Patented May 28. 1889.

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4 Sheets-Sheet 3.

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S. BAUSTIN. ADDING MAGHINE.

No. 403.900. Patented May 28. 1889v WITNESSES I I ttorney lithognphenwmm zw. n. c.

(No Model.) 4 Sheets -Sheet 4. S. E. AUSTIN.

ADDING MACHINE. No. 403,900. Patented May 28 1889.

WITNESSES, 21. INVENTOR UNITED STATES PATENT OFFICE.

SAMUEL E. AUSTIN, OF FORT VALLEY, GEORGIA.

ADDING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 403,900, dated May 28,1889.

Application filed June 10, 1887. Renewed April 22, 1889. SerialNo.808,2l4. (N0 model.)

To all whom it may concern.-

Be it known that I, SAMUEL E. AUSTIN, a citizen of the United States,residing at Fort Valley, in the county of Houston and State of Georgia,have invented new and useful Improvements in Adding-Machines, of whichthe following is a specification.

My invention relates to adding-machines; and it consists in theconstruction, combination, and adaptation of the parts of the same,which will be more fully set forth hereinafter, and pointed out in theclaims.

The primary object of my invention is to construct an adding orcalculating machine which will positively and accurately register thesum total of a column of numerals or given series of numbers, andpresent the result of the addition of the same to view by means of adial-plate.

A further object of my invention is to provide an adding-machine whichis simple and effective in its construction and operation, strong anddurable, positive in its results, easily handled and operated, readilyunderstood, and comparatively inexpensive in its manufacture.

I attain these objects by the mechanism illustrated in the accompanyingdrawings, wherein like letters and numerals indicate similar parts inthe several views, and in which- Figure 1 is a perspective view of myimproved adding-n'lachine as complete and ready for use. Fig. 2 is a topplan viewof the same with the case and dial removed. Fig. 3 is a similarview with the plate P removed. Fig. at is a bottom plan view of thesame. Fig. 5 is a longitudinal vertical sectional view on the line a; ofFig. 2, with the inclosing-case in position therewith. Fig. 6 is asimilar view showing the position of the mechanism with one of thekey-levers depressed. Fig. 7 is a side elevation of a portion of themachine. Fig. 8 is a top plan view of the form of reversing mechanismwhich I propose to use in connection with my present invention. Fig. 9is a sectional view showing the construction of the slLdin g pawl foroperating the mastergear. Fig. 10 is a detail sectional view of aportion of the mechanism. Fig. 11 is a modified form of the slide-pawlfor operating the mastergear. Fig. 12 illustrates sectional views of thesaid modified form of sliding pawl. Fig. 13 illustrates a detailenlarged sectional view through the lever i6 and proximate parts. Fig.14: is a detail sectional view showing one of the hollow screws filledwith felt.

A indicates the casing or covering, which is secured to the base-plate Bby means of suitable machine-screws, and is provided with suitableapertures, a and a, for the passage of the key-posts therethrough and ofthe re versing-lever. The said casing A is also provided with abulls-eye, a adapted to engage with the dial-plate when in position. Theplate B is provided on its under side with a suitable covering ofleather or other material, B, for the purpose of deadening the sound,and also causing the said machine entire to remain in stable position,as will be readily understood.

To the base-plate B a plate, C, is secured by machine-screws andsupported some distance above the base-plate by means of posts 0, forthe purpose of admitting of a free play of the mechanism secured to theunderside of the said plate.

011 the top forward portion of the plate 0 two metallic blocks, 1 l, aresecured, which inclose a trunnion-rod, 2, as shown in Fig. 5, upon whichthe levers 3 are mounted and intersected by washers 4, placed betweenthe levers, and by means of which a positive adjust-ment of the saidlevers is obtained. The levers 3 are constructed of suitable hardmeta-l, and are arranged in a slightly inclined position, and areenlarged at their inner ends and formed with inclined front ends, 5, theangle of incline whereof is from the rear toward the front of themachine. Every alternate lever 3 is provided with a rearward extension,U, and in said extension the lower ends of the key-posts 7t are secured,which have the key-heads K secured to the upper end thereof. Theintermediate levers, 3, are constructed without the extension 6, and thekey-posts 7a are secured directly to the body of the lever. Thesekey-posts may be c011- structed in any preferred manner, and preferablyhave a slightly-forward curved configuration, so as to throw the keysinto such a position as to render them convenient for operation andinspection during the use of the same. By means of theformation of theextension 6 alternately with the portion of the levers provision is madefor mounting two rows of keys containing the numerals from 1 to 9, whichwill operate without interference with each other. The said plate 0 hasa bearing-strip, 7, mounted in connection therewith just ahead of thekeys 3, and in the rear of the bearing strip '7 another bearing strip,8, is also secured. These strips 7 and 8 are formed with a series ofapertures, and in the plate 0, between the strips 7 and 8, anopening,'9, is formed. Mounted in the said strips 7 and 8, and havingmovement in the apertures thereof, are sliding rods 10, constructed ofvarying lengths, for a purpose which will be more fully hereinafter setforth and as fully illustrated in Fig.3 of the drawings.

The sliding rods 10 have depending block projections 11, extendingthrough the opening 9 in the plate 0 to the under side of the saidplate. These projections have rods 12 secured therein in planes parallelwith the rods 10, as shown in Figs. 5 and 6. The said rods 12 passthrough a bearingstrip, 13, secured to the under side of the plate 0 atsome distance to the rear edge of the opening 9. The rods 12 between thebearing-strip 13 and the depending block projections 11 are encircled bycoiled springs S, which tend to return the said rods and their dependingblock connection to their normal position, as shown in Fig. 4.

The ends of the rods 10 project through the bearing-strip 7, and areformed with inclined faces, which are engaged by the enlarged inclinedportion of the key bars or levers 3, as fully illustrated in Figs. 5 and6. The lower inclined portion of each of the levers 3 rests against theinclined face of the rods 10, and when any one of said levers isdepressed Ihe said rods 10 are forced backward, as shown in Fig. 6, forpurposes which will be more fully hereinafter set forth.

It will be seen that the inclined inner ends of the levers 3 just coverthe outer inclined faces of the rods 10 when the said levers are in anormal position, and thereby a sure engagement at all times mustnecessarily be the consequence. The opposite ends of the rods 10, whichnormally project through the bearing-strip 8, are constructed of varyinglengths, as said bars represent the numerals from 1 to 9. The rodrepresenting the numeral 1 is much shorter than the rod representing thenumeral 9, the increase being gradual in the said rods from 1 to 9. Toone side of the plate 0, upon a suitable post, 0, a sliding lever, 14,is secured, which projects over across the said plate 0 in a diagonaldirection and normally rests against the inner ends of the rods 10,assuming the transverse inclination thereof. A lever, 15, is alsosecured to the posts 0 below the lever 14 and divided therefrom by awasher, 16. The said lever 15 projects across the plate 0 in a planenearly parallel with the lever 14, but, as shown in Fig. 10, has anenlarged portion, 17, formed with its central portion, having aslot, 18,formed through said bar and extending into the enlarged portion 17,which slot 18 opens out from the front side of the said bar. The lever14 has a projecting arm, 19,formed with the end thereof, and is alsoformed with a tenon, 20, which plays in the recessed bearing-strip 21,longitudinally arranged in connection with the plate 0. The lever 14projects over parallel with the lever 15, as hereinbefore set forth, andthe lever 15 has a block, 22, formed with its outer end, which isprovided with a projection, 23, adapted to play in the bearing-strip 21in amanner similar to the tenon formed with the lever 14. Secured to thetop portion of the block 22, and projecting over and above the saidlever 15, is a plate, 24, which has a pin, 25, in its farthest end,which engages with the slot 26,

formed in one end of a cOnnecting link, 27,

which is secured at its opposite end to the lever 15, as shown in Fig.3. The under side of the connecting-link 27 is formed with a recesswhich permits of considerableplay between the levers 14 and 15, as willbe more fully hereinafter set forth. In the metallic strip 24 a diagonalslot, 28, is formed, in which a sliding block, 29, is mounted, havingproj ecting portions thereof protruding into and through the saiddiagonal slot 28. The projection 30 extends above the top surface of theplate 24 and is retained in position in the said slot by a pin, 31,passing transversely therethrough. In this portion of the block a rod,32, is secured, which projects diagonally across the plate 24 and ismovably mounted in connection with an angle-block, 33, and between saidangle-block 33 and projection 30, and surrounding the rod 31, is acoiled spring, S, which has the tendency to press the block 29 to oneside of the slot in which the projections work. Beneath the plate 24 theblock 29 is formed with two projecting flanges, 34, which inclose a'rod, 35. This rod 35 is arranged in a vertical position and travels in aplane diagonal to the plane of the plate 24. Above the lever 15 andbelow the lever 14 the mastergear G is mounted upon an arbor, A,extending upwardly from the plate 0 and through the central recessformed in the enlarged portion of the lever 15.

The sliding pawl or block 29, hereinbefore described, is arranged on aline nearly direct with the radii of the master-gear, and the rod 35 isadapted to engage with the intersecting spaces of the teeth 9 of themastergear G at a slight angle to the angle of presentation of the saidteeth. To steady the movement of the master-gear, ahollow screw, 36,passes through the plate 24, and having been supplied with a filling offelt, 37, presses directly on the upper face of the. said mastergear.Directly under the position occupied by the said hollow screw 36 a smallwasher or similar screw, 38, is secured in the lever 15, having afelt-top bearing-surface, 39, which engages with the under face of thesaid master-gear. The projecting arm 19, formed with the lever 14,extends in under theplate 24 and engages the rear side of the block 29and shoves it forward against the reaction of the spring S until the pinengages with the space betweenthe teeth 9 of the master-gear G. Toreturn the said lever let to its normal position and disengage the saidarm 19 from the rear of the block 29, a coiled spring, S is secured tothe rear portion of the lever lat at one end and to a post, 0'projecting upwardly from the plate O. The motion of the master-gear isalso limited by the action of a pawl, 40, mounted upon a post secured tothe plate C, the said pawl being formed with a recess and projection onits forward end, which passes in the intersecting space of the teeth 9and retains the wheel in a fixed position when the levers 1st and 15have been shoved backward as far as possible by the rods 10, and whichwill be varied proportionately to the length of the said rods. This pawl40 is engaged by a flat spring, S supported on a post extending upwardlyfrom the plate 0, the function of which sprinwill be readily understood.

The bearing-strip 21 has a covering-plate, l2, which is screwed on theupper projecting ends thereof, forming a recess, 1-3, in which the endsof the levers ll and 15 have movement, as hereinbefore set forth. Thesaid strip 21 has a slot, H, (see Fig. 7,) out therethrough, whichextends through the plate C, through which the angular projecting end'15 of the lever i6 projects and has movement. The said lever to ispivoted in cars 47 at the rear under portion of the plate C, and fromits pivotal point extends upwardly on an illcline to its enlargedangular projection 45, so as to allow a depression thereof without aninterference thereby with the base-plate B. The top edge of the saidlever is also formed with a downward incline, which provides for avertical movement of the enlarged portion &5, and at the same timeallows the upper side-of the said lever to come up flush with the underside of the plate G. The upper edge of the projecting portion isprovided with a recess, 48, and from each upper end of the shouldersformed by the said recessed portion 48 inclines -19 are constructed,which extend downward to the edges of the projection 45. The projection23, formed with the lever 15, and the tenon 20, formed with the lever1%, play in the recess of the bearingstrip 21 as they are slid backwardin the operation of the machine.

hen any one of the key-levers 3 is depressed and comes in contact withthe rods 10, the said rods 10 strike the front edge of the lever 14,which rides up the inclines on the top edge of the projection 45 of thelever -16 and strikes the projection 23 and shoves it forward in therecessed portion of the bearingstrip 21, at the same time depressing thesaid lever 46. The normal position of the projection 23 in connectionwith the lever 15 is in the recess formed in the top portion of theprojection 45, formed with the lever 46. At every return movement of thesaid levers 1t and 15 the projection 23 engages with the recess in thetop portion of the projection 45 and is retained thereby, (see Fig. 7,)thus adj usting said levers 14 and 15 in aposition relative to the endsof the rods 10 and with the remaining mechanism and in a position readyto have a similar operation and function.

In the under rear portion of the plate C a trunnion-rod, 50, is mountedbetween ears 51, secured upon the said plate, and upon this rod a seriesof levers, 52, are mounted, which are separated by washers 58. As shownin Figs. 5 and 6, the levers 52 are formed with a reduced plane portion,53, which, when the said levers are not in operative positions,willproject downwardly on an incline toward the base-p ate B. Integrallyformed with the for ward ends of the said levers 52 are enlargedprojections 5%, which have forward inclined recess portions 55,whiehhave the corresponding configuration as and are adapted to engage withthe inner end of the rods 12, as shown in Fig. 5. \Vhen, however, thesaid rods 12 are projected toward the rear portion of the machine, asshown in Fig. (i, the said rods ride off of the recess 55 and pass underthe said levers 52, as shown, thereby raising the said levers 52 andprojecting the enlarged portions 54: thereof up through slots 0 formedin the plates 0. When the lever 15 is slid backward by the rods 10, ashereinbefore described, engaging with the lever 14, the natural tendencyof the said lever 1.5 would be to have too great a motion, andconsequently make the device impracticable and useless. To obviate thisditliculty the projections 54, formed with the levers 52, engage therear edge of the levers 15 and form a means of limitation therefor. Thelevers 52 are formed of varying lengths and proportionate to the rods 10and 12 and to the operating mechanism of the machine. In like manner thecentral rearward projection on the lever 15 is adapted to engage withthe shorter series of levers 52, and thereby provide a constructionwhereby compactness and non-interference of the mechanism are obtained.These levers 52 form the rear guards for limiting the movement of thelever 15, as hereinbe'fore stated, and as any one of the key-levers 3 isdepressed its corresponding rod 12, which is in engagement with one ofsaid levers, raises the same and forces the projection 54 above thesurface of the plate G. hen the said lever 15 thence slides back, due tothe motion imparted thereto, as hereinbefore set forth, the leverstrikes against the projection 54, which may be above the surface of theplate 0, and preventsthe further backward move- By this motion,

ment of the said lever15.

IIO

also, the further revolution of the master gear G is prevented, and thenumber of teeth corresponding to the number of the lever depressed arerevolved past the pawl in connection with the rear portion of themaster-gear.

The several levers 52 are proportionately and relatively arranged inconnection with the rods 12, and are returned to their normal positionsby springs S secured to a plate, 56, and projecting over on the topsurface of the said levers 52, as shown in Figs. 5 and 6.

Upon the arbor A, directly above the upper face of the master-gear G, acollar is mounted, and upon the top portion of the collar a spurpinion,A is secured, which has ten teeth formed therein. Upon the posts orstandards 0 a plate, P, is mounted, which is adapted to cover the rearmechanism of the machine. The arbor A passes through an'aperture in thisplate and through a steel bearing-collar, 57, which rests on the topsurface of the plate P, while the arbor projects above the top surfaceof the plate P. In a suitable bracket, 19, secured to the under side ofthe plate P, an arbor, A is mounted, being stepped in the said bracketon the lower side of the plate and projecting above the upper surface ofsaid plate, for a purpose which will be more fully hereinafter setforth. Upon the said arbor a gear-wheel, G, is mounted, having onehundred teeth formed therein, and connectedwith the spur-pinion A andconsequently has one-tenth the revolution of the said pinion. The arborsA and A project upwardly through a dial-plate, D, and have indicessecured to the upper ends thereof, which move in connection with a scaleof figures representing units and tens.

Upon the top surface of the plate P and passing over and seated on thearbors A and A are two heart-cams, 58 59, having springs 60 and 61 ontheir under sides. On the top portion of the said arbors, also, theindices 62 and 63 are mounted, the one 62 engaging with the unit-scale,which is constructed with one hundred divisions, from 5 to 100. Theother index, 63, engages with the ten-scale, which is formed with tendivisions, from 1 to 10. In the operation of the machine the revolutionof the index 62 presents an added total in the units-column, and if saidindex runs around to the mark representing 100 the index 63 will be madeto point to the mark 1 on the ten-scale. Bythis means itwill be seenthat the index 63 will indicate 1,000 on an entire revolution thereofaround the face of the dial on which it operates.

When it becomes necessary to reverse the indices and bring them to thepoints marked Zero, at the upper portion of the dials, one of twomechanisms may be used to accomplish this result, one of which is shownin Fig. 2 and the other in Fig. 8. The mechanism shown in Fig. 2 issimilar to that shown in a patent granted to me of recent date, and inthis instance I propose to use the mechanism shown in Fig. 8. Pivoted toone side of the plate P is a lever, P, which is constructed with astraight portion, 19 and a semicircular bend, p. This lever P isconstructed in one piece, and has two central projections, 10 pconstructed, respectively, with the edges of the parts 19 12' nearestthe arbors A A These central projecting portions are adapted to engagewith the depressions in the heart-cams or with any surface of the samewhich may be presented thereto. When the said projections strike theheart-cams, they return the indices to the points marked zero on thedial, in a position ready to begin the addition of a column of figures.To the side opposite the pivotal point of the said lever P a pull-lever,64, is secured, which passes through a bearingblock, 65, secured on thetop surface of the plate P, said leverhaving astop-pin, 66, passingtransversely therethrough, which rests against the said bearing-block 55when the said lever has returned to its rearward normal position. Thefront end of the draw-lever 64 is provided with an operating-handle, 67,which projects through the front portion of the casing adjacent to thekeys. Near the pivotal point of the said lever P.a spring, 8, ismounted, which bears against the straight portion 19 of the said leverand has a tendency to return the same to its rearward normal position,as will be readily understood.

In Figs. 11 and 12 I have illustrated a modified form of my slide-pawl.In this instance the connecting-link 27 is situated nearest one end ofthe lever 14, and. in like manner has a slot in its end which engageswith a pin or stud connected to the top portion of the proj ecting plate24. A transverse slot is also formed in this plate 24, as in the formhereinbefore described, but of greater extent than said form of slot,and a flat spring, 68, is secured to the top surface of the projectingplate 24 and extending over the said slot Upon the top surface of thisspring 68, and nearest one edge thereof, is a cam-block, 69, whosedownward-curved surface is presented to the forward edge of the slot inthe link 27 for engagement. On the under side of I this spring 68 a pinor stud, 7 0, projects downwardly therefrom, as shown in the firstsectional view of Fig. 12, which is taken on the line 2 z of Fig. 11.This projecting stud or pin 70 engages with the teeth of the mastergearG and revolves the same in manner similar to the form hereinbeforedescribed, and as will be readily understood. In this instance, however,the projecting arm on the end of the lever 14 is dispensed with, as isalso the sliding arrangement of the pawl hereinbefore set forth, themovement in this instance being in a vertical plane at right an-- glesto the plane of action of the slide-pawl hereinbefore described; but, asin the said form hereinbefore set forth, the engagement between the studor pin 70 is on aradialline with the master-gear G. It will beunderstood in this instance that the lever 14 also IIS has movement in amanner similar, as here inbefore set forth, striking against the leverand shoving the link 27 over the top surface of the spring 68 andengaging with the cam-surface 69 thereon and operating the pin or stud70, as hereinbefore set forth. In the second sectional view of Fig. 12,which is taken on the line w of Fig. 11, the construction of thecam-surface and the slot in the link 24; is fully illustrated.

The operation of my improved device is as follows: Upon the depressionof any one of the keys K the levers move downward over the ends of therods 10, and in their downward depressions they are given unlimitedmovement as far as necessary by the depression formed in the top surfaceof the plate 0, immediately under the levers 3. In shoving the said rods10 backward, the master-gear is revolved by the mechanism hereinbeioreset forth, as many teeth being shoved around as may be engaged by thelever. The motion of the slide-pawl in connection with the levers 15,

. acting directly with the teeth and the mastergear G, revolves it witha sudden impetus, which is directly translated to index mounted upon thearbor of the said gear. lVhen the sliding rods 10 are pushed forward bythekeylevers K, the rods 12 are correspondingly pressed forward. Eachrod 10 has a rod, 12, which moves in unison therewith, and the lengthsof the rods 10 and 12 are proportionate. The rods 10 actuate thepropelling devices for the master-gear, while the rods 12 actuate thestop mechanism to limit the movement of the propelling devices. Thesliding rods 10 come in contact with the lever lat in their movements,while the rods 12 contact with the stop-levers These stoplevers 52 areprojected in advance of the lever 15 to limit the movement of thelatter. Both levers 14 and 15 have a common connection with theactuating devices for the master-gear G, and, as both levers let and 15are movable simultaneously, it will be understood that when thestop-levers 55 are actuated and thrown up in advance of the lever 15 thefurther movement of both levers 1.5 and the lever let is prevented.Thus, as one of the sliding rods 10 is pushed forward against the lever14, the latter is moved, and its first movement pushes the pawl. orsliding block 29 into engagement with the teeth of the masterwheel G. Atthe same time the lever 15 is moved along with the lever 14, and thefurther movement of both levers actuates the wheel G until the lever 15comes in contact with the stop 54, which has been thrown up by the rod12 to limit the lever 15 in its movement. The range of movement given tothe lovers 11 and 15 determines the number of teeth which are to beengaged by the sliding pawl 20 and the consequent degree of rotation ofthe gear G. Thus, when the key-lever for numeral 9 is operated, its rod10 will be caused to project thelever 14 a greater distance than whenthe keylever of numeral '7 is operated. Correspondingly the stops 54.are set at greater distances from the lever 15, so-that when thekey-lever for numeral 9 is operated its corresponding stop will bethrown up at a greater distance from the lever 15, and thus allow agreater range of movement for said lever than when the keylever ofnumeral 6 is depressed. It will be understood, however, that the impetuswith which the gear G revolves is limited by the stop mechanismhereinbefore described, and, being translated to the arbor upon whichthe master-gear is mounted, it necessarily imparts motion to thespur-pinion mounted in connection with the said arbor above themaster-gear, this spur-pinion being formed with. ten teeth, so that onerevolution of the master-gear G revolves the spurpinion once, which inturn imparts motion to the gear G, which revolves in a reverse directionto the master-gear G. It takes one complete revolution of master-gear Gto move the gear G enough to advance the pointer (33 one space. This isdue to the fact that spur-pinion A has but ten teeth. lVhen the gear Gmoves by the engagement of spur-pinion A therewith, it is turned onespace when the pinion A has made a complete revolution. The large indexrevolving in one direction indicates units and tens up to one hundred,while the smaller index revolving in the re verse direction indicateshundreds up to one thousand.

My improvement is especially useful for the rapid calculation of aseriesof written or given numbers, and is especiallyadvantageous in largecounting and other mercantile houses. The construction of the severalparts of the device is such that every portion thereof will move inrelative time to the parts with which it connects, and the parts ofthemselves of such durable construction and positive operation that nodanger is incurred of displacement of any parts thereof and a consequentinaccuracy in the operation of the parts of the machine.

The novelty and utility of my improved device being obviously apparent,it is unneeessary to further enlarge upon the same herein.

It is obvious thatmany minor details in the construction and arrangementof the several parts may be made and substituted for those herein shownand described withoutin the least departing from the principle andnature of my invention.

Having thus described my invention, I claim 1. In an adding-machine, aseries of sliding rods of different lengths having forward-inclinedends, and a series of key-levers having corresponding projectinginclinedends adapted to engage with the forward ends of the said rods,substantially as described.

2. The combination, with the sliding rods having depending projectionsformed there with, a spring-actuated rod connected to the said dependingprojection, and the key-levers, substanth lly as described.

3. In an adding-machine, the series of sliding rods of differentlengths, the key-levers for actuating the same, the levers 14 and 15, tobe actuated by the rods, and the registering mechanism worked by themovement of the levers 14 and 15, as set forth.

4. The combination, with the sliding rods of varyinglengths mounted insuitable bearing-strips, of the key-levers engaging with the forwardends thereof, the lever 14, normally resting against the inner ends ofsaid rods, and the coiled spring for returning said lever 14 to itsnormal position, substantially as described.

5. In an adding-machine, the combination of the key-levers 3, having theenlarged inclined ends 4, the projections 5, alternately formed wit-hsaid lever, the key-post projecting above the said levers, and thesliding rods 10, of varying lengths, with which said levers engage,substantially as described.

6. The combination of the key-levers, the sliding rods 10, having rods12, encircled by coiled springs connected to the under part thereof,levers 14 and 15, and the stop-levers 52, the registering mechanismoperated by rods 10, and the stop mechanism operated by rods 12,substantially as described.

7. The combination, with the rods 10, having the projections 11, of therods 12, encircled by coiled springs, substantially as described.

8. The combination, with the rods 10, having the projections 11, of therods 12, encircled by coiled springs, the levers '52, having theprojecting ends 54, and the spring for returning said levers 52 to theirnormal position, substantially as described.

9. The combination, with the levers 14 and 15, of the slide-pawl inconnection with the lever 15 and the master-gear G, the stop mechanismfor thejlever 15, and the key-levers for actuating lever 14, and also tocontrol the stop mechanism, substantially as described.

10. The combination, with the levers 14 and 15, of the key-levers foractuating the said levers 14 15, the slide-pawl in connection with thelever 15, the master-gear G, in connection with the arbor A, and theindex on the top portion of said arbor, substantially as de-' scribed.

11. The combination, with the lovers l4 and I 15, of the spring-actuatedslide-pawl in 0011- nection with the lever 15, operating in a line tothe center of the master-gear G, the keylevers for working the levers 14and 15, and the spring-actuated pawl for holding the master-gear in itsdesired position, substantially as described.

12. In an adding-machine, the combination, with the master-gear G,connecting with the registering mechanism, of the lever 15, foractuating the same, said lever having the hollow screws adapted to befilled with felt or the like and engaging the surface of the saidmaster-gear, as set forth.

13. The combination, with the lever 14, of

the link 27 connecting said lever with the lever 15, the slide-block orpawl 29, and the vertically-arranged stud or pin adapted to engage theteeth of the master-gear G, substantially as described.

14. The combination, with the lever 15, carrying the spring-actuatedsliding pawl, and the lever 14, of the arms projecting outwardly fromthe side thereof and adapted to engage with the spring-actuated slidingpawl, and the key-levers and sliding rods for actuating the lever 14,substantially as described.

15. The combination, with the lever 15, having the central recessedenlargement, of the stop-levers 52, having the forward enlarged ends,and the spring for returning said levers to their normal position,whereby the movement of the said lever 15 is limited proportionately tothe length of the slide-rod 10, substantially as described.

16. In an adding-machine, the combination, with the key-levers, of therods 12 actuated thereby, the master-gear G, the lever 15, operated bythe key-levers, and the stop-levers 52, operated by the rods 12, as setforth.

17. The combination, with the slide-rods 10, connecting with theregistering mechanism, of the key-levers 3, having the enlarged innerinclined ends, whereby a positive motion between the two parts is at alltimes afforded, substantially as described.

18. The combination, with the levers 14 and 15, of the slide-pawlcarried by the lever 15, the master-gear operating in connection withsaid slide-pawl, and the pinion mounted upon the same arbor as themaster-gear, substantially as described.

19. In combination with the master-gear G and the actuating mechanismtherefor, rods 10, of different lengths, to work the actuatingmechanism, the rods 12, encircled by springs and of varying lengths, andthe levers 52, which are adapted to be projected upward to limit themovement of the actuating mechanism for the master-gear, substantiallyas described.

20. In combination with the levers 14 and 15, the diagonally-arrangedslots in said lever, the slide-block arranged in connection with saiddiagonal slots, the spring-actuated rod, and the vertically-arranged pinmounted in the said sliding block and adapted to engage with the teethof the master-gear, substantially as described.

21. The combination of the lever P, having the straight and curvedportions 13 and 19 formed integrally, the central projections formedtherewith, the heart-cams mounted on the arbors of the indices, and thedraw rod or lever whereby the indices may be returned to their normalposition, substantially as described.

22. The combination, with the levers 3, constructed as herein set forth,of the slide-rods 10, the spring-actuated rods 12 in connectiontherewith, the levers 14 and 15, the slidepawl mounted in connectionwith the lever 15, the master-gear G, the rear pawl adapted to engagewith the said master-gear, and the stop-levers 52, substantially asdescribed.

23. The combination, with the plate C, of the bearing-strips '7 and 8,mounted thereon and forming the front and rear walls of a slot, 9,constructed in said plate, and the slide-rods 10, having the dependingprojections 1], to which the rods 12 are secured, substantially asdescribed.

2%. In combination with the master-gear G, the hollow screws filled withfelt and engaging the faces of the gear, as and for the purpose setforth.

25. In combination with the master-gear G, connecting with theregistering mechanism, the spring-actuated graduated rods 10, thekey-lever actuating the rods 10, the swinging lever engaging and turningthe masterwheel, the said swinging lever being actuated by the rods 10,and the stop mechanism, also actuated by the movement of the slidingrods 10 to limit the movement of the swinging lever, as set forth.

26. In combination with the master-wheel G, connecting with theregistering mechanism, the spring-actuated graduated rods 10, thetransmitting mechanism operated by the sliding rods to move the wheel G,and the stop mechanism, also operated by the sliding rods to limit themovement of the transmitting mechanism and correspondingly limit themovement of the wheel G, as set forth.

27. In combination with the key-levers, the spring-actuated graduatedsliding rods 10 operated thereby, the spring-actuated swinging leversoperated by the sliding rods, the wheel G, the pawl on the levers toengage the wheel, and the stop-levers 52, also graduated and operated bythe rods 10 to be thrown up in advance of the swinging levers to limitthe movement of the latter, as set forth.

28. I11 combination with the master-gear G, the swinging levers toengage and actuate the gear, the key-levers to move the swinging levers,and the hollow screws filled with felt and fitted to the swinginglevers, the felt being pressed by the screws against the gear, as setforth.

29. In combination with the master-gear G, the spring-actuated swinginglevers 14.- 15, arranged above and below the gear, the pawl carried bythe lower lever, 15, to engage the gear, the spring-actuated slidingrods 1O 12, actuated by the key-levers, the rods 10, actuatiu g againstthe lever 14, the stop-levers 52, to limit the movement of the lever 15,said stop-levers being actuated by the rods 12, as set forth.

In testimony that I claim the foregoing as my own Ihave hereto afiixedmy signature in presence of two witnesses.

- SAMUEL E. AUSTIN.

Witnesses:

EDWARD A. BURGESS, SAML. LLOYD.

